Start with a WinPE 5.0 image. You can get WinPE 5.0 from either the Windows 8.1 RTM or the Windows 8.1 Update versions of the Windows ADK.
Click Start, and type deployment. Right-click Deployment and Imaging Tools Environment and then select Run as administrator.
Create a working copy of the Windows PE files. Specify either x86 or amd64: